Kenwood DPX-6020, Service Manual

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Ref. Parts No. Name Function
Q36 DTC144EUA Panel detection Panel voltage detection
Q37 DTA144EUA CH1
→
2 switching When turned on, A8V is output.
Q38 DTC144EUA CH1
→
2 switching When turned on, Q37 is turned on.
Q41 2SD2114K MUTE SW When turned on, output of IC7 is muted.
Q42 2SD2114K MUTE SW When turned on, output of IC7 is muted.
Q44 DTC143TUA PREOUT MUTE When turned on, PREOUT MUTE (Rear Rch)
Q45 DTC143TUA PREOUT MUTE When turned on, PREOUT MUTE (Rear Lch)
Q46 DTC143TUA PREOUT MUTE When turned on,PREOUT MUTE (Front Rch)
Q47 DTC143TUA PREOUT MUTE When turned on,PREOUT MUTE (Front Lch)
Q48 DTC124EUA PW IC MUTE When turned on, PW IC MUTE
Q49 DTC144EK PW IC protection
Q50 DTC114YUA SVR Discharge SW From STBY OFF, on within 5 seconds.
Q51 DTA124EUA RESET detection SW When turned on, Q52 is turned on.
Q52 DTC114YK RESET detection SW When turned on, RESET
Q53 FMC2A Switch for LOGO LED When turned on, LOGO LED lights up.
Q54 FMC2A Switch for CD LED When turned on, CD LED lights up.
Q55 FMC2A Switch for TAPE LED When turned on, TAPE LED lights up.
Q59 DTA114EUA MUTE detection When turned on, MUTE
Q60 DTC124EUA MUTE detection At MUTE detection, Q59 is turned on
COMPONENTS DESCRIPTION / MICROCOMPUTER’S TERMINAL DESCRIPTION
Pin Pin Name I/O Description Processing Operation
1 DSP RVDT O DSP data output
2 DSP_CLK O DSP clock output
3 CHCON1 O External CH1 selection H: CH1, L: Others
4 CHCON2 O External CH2 selection H: CH2, L: Others
5 DATAH O External CH data output
6 DATAC I External CH data input
7 CHCLK I/O External CH clock input/output
8 BYTE I External data bus width switching
9 CNVss I Processor mode switching
10 DSP_REDY I DSP write request
11 DSP_RST O DSP Reset
12 Reset I Reset input L: Reset
13 Xout O Main system clock output
14 Vss I Power input
15 Xin I Main system clock input
16 Vcc I Power input
17 NC I Not in use
18 SP INT I Spectrum analyzer reception permission
19 BU DET I B.U detection H: Power down
DPX-6020
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